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Is increases in entropy a criterion for ...

Is increases in entropy a criterion for spontaneity? Explain.

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No. For the spontaneity of the reaction `DeltaG` must be negative. Even though entropy does not increase if the `DeltaH` is more negative than `TDeltaS` in the equation `DeltaG=DeltaH-TDeltaS, DeltaG` Becomes negative and the reaction becomes spontaneous.
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VGS PUBLICATION-BRILLIANT-THERMODYNAMICS-SHORT ANSWER QUESTIONS
  1. Is decrease in enthalpy a criterion for spontaneity? Explain.

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  2. What is entropy? Explain with examples.

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  3. Is increases in entropy a criterion for spontaneity? Explain.

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  4. Can DeltaU and DeltaS discriminate between irreversible and reversible...

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  5. In which of the following process entropy increases? a) A liquid ev...

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  6. For the oxidation of iron 4Fc((s))+3O(2(g))to2Fe((2))O(3(s)), the ...

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  7. Which formulate in the following are correct? a) G=H-TS b) DeltaG(...

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  8. Calculate Delta(r)G^(theta) for conversion of oxygen to ozone (3)/(2)O...

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  9. State the second law of thermodynamics and explain it.

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  10. State the third law of thermodynamics.

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  11. What is entropy? Explain with examples.

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  12. Explain spontaneity of a process in terms of Gibbs energy.

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  13. The sign and magnitude of Gibbs energy change of a chemical process te...

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  14. In a process 701 J of heat is absorbed by a system and 394 J of work i...

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  15. The reaction of cyanamide (s), with dioxygen was carried out in a bomb...

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  16. Calculate the number of kJ of heat necessary to rise the temperature o...

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  17. Calculate the enthalpy change on freezing of 1.0 mol of water at 10.0^...

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  18. Enthalpy of combustion of carbon to CO(2) is -393.5 kJ mol^(-1). Calcu...

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  19. Enthalpies of formation of CO(g), CO(2)(g),N(2)O(g) and N(2)O(4)(g) ar...

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  20. Given N(2)(g)+3H(2)(g)to2NH(3)(g),Delta(r)H^(theta)=-92.4 kJ mol^(-1) ...

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